An agent for removing malodor from a painting booth includes a volatile organic compound (VOC) degrading microorganism and a volatile fatty acid (VFA) degrading microorganism. The VOC degrading microorganism is configured to degrade VOC. The VFA degrading microorganism is configured to degrade VFA generated when the VOC is degraded.A method of removing malodor is also disclosed.

The present invention relates to a computer-implemented method for monitoring at least one exhaust gas purification system for purifying an exhaust gas stream to be purified of an industrial system or an industrial process. The method comprises retrieving system data of the exhaust gas purification system from a data cloud. The system data stored in the data cloud were at least partially received beforehand by the data cloud from the exhaust gas purification system. The system data relate to at least measurement data of at least one sensor of the exhaust gas purification system and/or data about at least one adjustable parameter of the exhaust gas purification system. The method further comprises determining at least one quantity characterizing the exhaust gas purification system based on the retrieved system data.

A device and a method treats a gas flow. Combustible components are separated from a first gas flow by means of an absorption process using a liquid medium in an absorption device; the components dissolved in the liquid medium are deposited into a second gas flow by means of a desorption process in a desorption device; and the concentration of combustible components in the second gas flow is set to a specified value. The second gas flow with the combustible components is additionally supplied to a gas turbine as fuel in order to generate electric energy and heat. A virtually energy-neutral exhaust air purification process is possible using the proposed device and method.

In order to provide a surface treatment device for treating a surface of a workpiece which is operable simply and safely, it is proposed that the surface treatment device include the following: a work region in which the surface of the workpiece is treatable; a flow guiding device by means of which a gas stream is guidable through the work region; a solvent separating device for separating off solvent from the gas stream that is guided through the work region, wherein the solvent separating device is configured to be put selectively in a separating condition or in a rest condition, wherein, in the separating condition, the solvent separating device separates off solvent from the gas stream.

The invention provides a waste gas purification apparatus and residual heat utilization and control device for intelligent printing and dyeing waste gas. The apparatus includes: a circulating water storage tank; a liquid circulation tank; a water filtration system, connected to the storage tank; a bubble generation device, connected to the storage tank; and an organic waste gas removal device. An upper end of the waste gas removal device is connected to the bubble generation device and the liquid circulation tank, and a lower end is connected to the liquid circulation tank. The utilization and control device includes a residual heat cascade utilization unit, a spraying unit, a composite pulse static absorption column unit, a twin-stage high-temperature water white smoke elimination unit, and an air discharge unit sequentially disposed in a waste gas flow direction, and includes an oil-water separation box, a sodium chloride electrolysis device, and the purification apparatus.

The invention provides a waste gas purification apparatus and residual heat utilization and control device for intelligent printing and dyeing waste gas. The apparatus includes: a circulating water storage tank; a liquid circulation tank; a water filtration system, connected to the storage tank; a bubble generation device, connected to the storage tank; and an organic waste gas removal device. An upper end of the waste gas removal device is connected to the bubble generation device and the liquid circulation tank, and a lower end is connected to the liquid circulation tank. The utilization and control device includes a residual heat cascade utilization unit, a spraying unit, a composite pulse static absorption column unit, a twin-stage high-temperature water white smoke elimination unit, and an air discharge unit sequentially disposed in a waste gas flow direction, and includes an oil-water separation box, a sodium chloride electrolysis device, and the purification apparatus.

(Problem to be Solved) To provide a volatile organic compound recovery device which renders energy saving possible and renders the equipment simple. (Means for Solution) An untreated gas which contains a volatile organic compound is supplied to an adsorption tower (1), whereby the volatile organic compound is adsorbed onto the adsorbent. After completion of the adsorption, a volatile organic compound which has higher adsorbability than that of the volatile organic compound adsorbed onto the adsorbent is supplied to the adsorption tower (1) through a desorption gas supply valve (4). The volatile organic compound which has low-adsorbability and has been adsorbed onto the adsorbent is then desorbed therefrom due to competitive adsorption with the high-adsorbability volatile organic compound fed later, and the high-adsorbability volatile organic compound itself is adsorbed onto the adsorbent instead. As a result, the volatile organic compound which has been adsorbed is discharged from the adsorption tower (1) and recovered.